428 



PRINCIPAL SIE WM. TURNER ON 



Superior Extremity. 



The bones were well proportioned, though their dimensions were much smaller than 

 in the average male European. 



Clavicle. — The clavicles were slender bones with the curves well marked, the 

 muscular impressions feeble, the groove for the subclavius muscle shallow. About 

 14 mm. from the sternal end a raised smooth facet was on the under surface at the 

 place of attachment of the costo-clavicular ligament, for articulation apparently with 

 the surface on the 1st rib already described. The right clavicle was 132 mm., the left 

 131 mm. long in a straight line. 



Scapula. — The spine, acromion, and coracoid, though relatively small, were normal. 

 The suprascapular notch was deep and wide ; the axillary border was scarcely falciform ; 

 the inferior spine was pointed ; the coraco-scapular notch on the inner border of the 

 glenoid was distinct. The right scapula was 1 4 L mm. long from superior to inferior 

 angle ; 93 mm. broad from border of glenoid to vertebral border opposite the spine ; 

 in it the scapular index was 66, and in the left scapula the infraspinous length was 

 104 mm., and the corresponding index was 89 - 4. Garson gave 59 as the mean 

 scapular index in the three Tasmanians which he measured, and the infraspinous index 

 as 81'4. Klaatsch from his measurements of the London skeletons of Tasmanians 

 obtained 607 as the mean scapular index, in my series of Australians the mean 

 scapular index was 63 and the mean infraspinous index was 87. Broca gave 65 '9, and 

 Flower and Garson 65 "2, as the mean scapular index in Europeans, and the same 

 anatomists obtained respectively 877 and 8 9 "4 as the infraspinous index. In the 

 Brussels skeleton the scapular index was unusually high for the Tasmanians and 

 approached the mean in Europeans. 



Bones of the Shaft. — The long bones were relatively small and those of the forearm 

 were slender. The humerus had well-defined ridges and processes ; the deltoid 

 impression and musculo-spiral groove were well marked. Neither supracondyloid 

 process nor interoondyloid foramen was present. The radius and ulna had the 

 articular surfaces distinct and the shafts were well formed; the interosseous interval was 

 moderately wide. The length of the bones was as follows : — 



Humerus, maximum length, 

 Radius ,, „ 



Ulna 



Right. 



Left. 



289 mm. 



279 mm 



231 „ 



228 „ 



252 „ 



247 „ 



The bones of the right arm were therefore materially longer than those of the left. 

 An antebrachial or radio-humeral index was computed for the right limb by the 



The index in this skeleton was 7 9 "9. Topinard and 



formula radial length + 100 

 humeral length 



Barnard Davis gave a mean index 7 9 '6 as the result of their measurements of male 

 Tasmanians, and Garson stated the mean as 79"9, which corresponded with my skeleton. 



